elf[8], ref[7], fes[7], bel[6], ble[6], cel[5], cle[5], lec[5], ber[5], erb[5], reb[5], cer[4], der[4], red[4], ces[4], des[4], ser[3],
ef[6], fe[6], be[4], ce[3], de[3], el[3], er[2], re[2], es[2], se[2],